Effect of hypobaric hypoxia on spermatogenesis, Leydig cells and delta 5-3 beta-hydroxysteroid dehydrogenase activity in toad. 1985

H M Biswas, and M C Boral, and A K Ghosh

The effect of different grades of hypobaric hypoxia for 48 hours was studied on spermatogenesis, Leydig cells and delta 5-3 beta-hydroxysteroid dehydrogenase activity in toad (Bufo melanostictus). Maximum inhibition of testicular activity was noted in 7,315 m exposed animals. The impairment of testicular function at high altitude is possibly due to inhibition of gonadotrophin secretion.

UI MeSH Term Description Entries
D007985 Leydig Cells Steroid-producing cells in the interstitial tissue of the TESTIS. They are under the regulation of PITUITARY HORMONES; LUTEINIZING HORMONE; or interstitial cell-stimulating hormone. TESTOSTERONE is the major androgen (ANDROGENS) produced. Interstitial Cells, Testicular,Leydig Cell,Testicular Interstitial Cell,Testicular Interstitial Cells,Cell, Leydig,Cell, Testicular Interstitial,Cells, Leydig,Cells, Testicular Interstitial,Interstitial Cell, Testicular
D008297 Male Males
D002025 Bufonidae The family of true toads belonging to the order Anura. The genera include Bufo, Ansonia, Nectophrynoides, and Atelopus. Bufo,Toads, True,Bufos,Toad, True,True Toad,True Toads
D000531 Altitude A vertical distance measured from a known level on the surface of a planet or other celestial body. Altitudes
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000860 Hypoxia Sub-optimal OXYGEN levels in the ambient air of living organisms. Anoxia,Oxygen Deficiency,Anoxemia,Deficiency, Oxygen,Hypoxemia,Deficiencies, Oxygen,Oxygen Deficiencies
D001274 Atmospheric Pressure The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned. Atmospheric Pressures,Pressure, Atmospheric,Pressures, Atmospheric
D013091 Spermatogenesis The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA. Spermatocytogenesis,Spermiogenesis
D013737 Testis The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS. Testicles,Testes,Testicle
D015096 3-Hydroxysteroid Dehydrogenases Catalyze the oxidation of 3-hydroxysteroids to 3-ketosteroids. 3-beta-Hydroxysteroid Dehydrogenase,3 Hydroxysteroid Dehydrogenases,3 beta Hydroxysteroid Dehydrogenase,Dehydrogenase, 3-beta-Hydroxysteroid,Dehydrogenases, 3 Hydroxysteroid,Dehydrogenases, 3-Hydroxysteroid,Hydroxysteroid Dehydrogenases, 3

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